Analysis
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max time kernel
147s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
29-06-2024 02:36
Static task
static1
Behavioral task
behavioral1
Sample
42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe
Resource
win10v2004-20240508-en
General
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Target
42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe
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Size
2.2MB
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MD5
6b29438e2f460436ce9e8f0a48251a24
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SHA1
196eb2f404d04b63de571e7bd2e23f501419591e
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SHA256
42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990
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SHA512
db93567bd0ea0354a5cb4544309852b364d479c1147206fbee5f95c99decddc14dbd1d8cbc4b1316fbce1f2289f0e8b19b51cc3fbd9fd63039a8f83429050568
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SSDEEP
49152:qpjNvr9ySAOmw4dHHO+SASagXkJr4MDkUwm:qpjNp7p4dHH8n5A
Malware Config
Extracted
vidar
https://t.me/g067n
https://steamcommunity.com/profiles/76561199707802586
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Signatures
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Detect Vidar Stealer 9 IoCs
Processes:
resource yara_rule behavioral1/memory/452-1-0x0000000003FD0000-0x00000000040E0000-memory.dmp family_vidar_v7 behavioral1/memory/1204-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1204-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1204-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1204-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1204-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1204-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1204-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1204-17-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat499C.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation kat499C.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat499C.tmppid process 1204 kat499C.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exedescription pid process target process PID 452 set thread context of 1204 452 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat499C.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat499C.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat499C.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat499C.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1516 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat499C.tmppid process 1204 kat499C.tmp 1204 kat499C.tmp 1204 kat499C.tmp 1204 kat499C.tmp 1204 kat499C.tmp 1204 kat499C.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exekat499C.tmpcmd.exedescription pid process target process PID 452 wrote to memory of 1204 452 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat499C.tmp PID 452 wrote to memory of 1204 452 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat499C.tmp PID 452 wrote to memory of 1204 452 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat499C.tmp PID 452 wrote to memory of 1204 452 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat499C.tmp PID 452 wrote to memory of 1204 452 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat499C.tmp PID 452 wrote to memory of 1204 452 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat499C.tmp PID 452 wrote to memory of 1204 452 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat499C.tmp PID 452 wrote to memory of 1204 452 42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe kat499C.tmp PID 1204 wrote to memory of 952 1204 kat499C.tmp cmd.exe PID 1204 wrote to memory of 952 1204 kat499C.tmp cmd.exe PID 1204 wrote to memory of 952 1204 kat499C.tmp cmd.exe PID 952 wrote to memory of 1516 952 cmd.exe timeout.exe PID 952 wrote to memory of 1516 952 cmd.exe timeout.exe PID 952 wrote to memory of 1516 952 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe"C:\Users\Admin\AppData\Local\Temp\42c1d4fbdc639d35db9d6f172eddd289b66f255d3bd6d53c878ccdff25067990.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:452 -
C:\Users\Admin\AppData\Local\Temp\kat499C.tmpC:\Users\Admin\AppData\Local\Temp\kat499C.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1204 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat499C.tmp" & rd /s /q "C:\ProgramData\AEBGIEGCFHCF" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:952 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:1516
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f